Amp-hour counting control for PV hybrid power systems
Conference
·
OSTI ID:519115
- Sandia National Labs., Albuquerque, NM (United States)
- Biri Systems, Ithaca, NY (United States)
The performance of an amp-hour (Ah) counting battery charge control algorithm has been defined and tested using the Digital Solar Technologies MPR-9400 microprocessor based PV hybrid charge controller. This work included extensive field testing of the charge algorithm on flooded lead-antimony and valve regulated lead-acid (VRLA) batteries. The test results after one-year have demonstrated that PV charge utilization, battery charge control, and battery state of charge (SOC) has been significantly improved by providing maximum charge to the batteries while limiting battery overcharge to manufacturers specifications during variable solar resource and load periods.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 519115
- Report Number(s):
- SAND--97-1160C; CONF-970953--1; ON: DE97007467
- Country of Publication:
- United States
- Language:
- English
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